Does Merritt’s Supreme Hydrangea bloom on new wood?
No, Merritt’s Supreme Hydrangea (Hydrangea macrophylla) typically blooms on old wood. This means that the flower buds are formed on the previous year’s growth, so it’s important to avoid heavy pruning in the fall or spring, as it can remove the flower buds for the coming season.
100 Species in Genus Hydrangea
How to plant Merritt’s Supreme Hydrangea?
To plant Merritt’s Supreme Hydrangea, follow these steps:
- Timing: Plant in spring or fall when temperatures are milder.
- Site Selection: Choose a location with well-draining soil that gets morning sun and afternoon shade.
- Planting Hole: Dig a hole twice as wide and as deep as the root ball.
- Soil Preparation: Amend the soil with compost or well-rotted manure.
- Planting: Place the hydrangea in the hole, ensuring the top of the root ball is level with the surrounding soil. Backfill with the amended soil and gently firm it around the plant.
- Watering: Water thoroughly after planting to settle the soil and eliminate air pockets.
How to care for Merritt’s Supreme Hydrangea?
To care for Merritt’s Supreme Hydrangea, follow these guidelines:
- Soil: Ensure the soil is well-draining but retains moisture. Hydrangeas prefer rich, loamy soil.
- Watering: Keep the soil consistently moist, especially during dry spells. Water deeply but avoid waterlogging.
- Mulching: Apply a layer of mulch around the base to retain moisture and regulate soil temperature.
- Fertilizing: Feed with a balanced, slow-release fertilizer in the spring and again in the summer.
- Protection: Protect from harsh winter winds and cold by covering the plant with burlap or a similar material if you live in a colder climate.
How to prune Merritt’s Supreme Hydrangea?
To prune Merritt’s Supreme Hydrangea, follow these steps:
- Timing: Prune immediately after flowering, usually in late summer, since it blooms on old wood.
- Deadheading: Remove spent flowers to encourage new growth.
- Maintenance Pruning: Cut back any dead, damaged, or weak stems. Thin out the center of the plant to improve air circulation.
- Shaping: If necessary, lightly shape the plant by cutting back stems to just above a pair of healthy buds.
Are Merritt’s Supreme Hydrangea perennial?
Yes, Merritt’s Supreme Hydrangea is a perennial plant. With proper care, it will come back year after year, providing beautiful blooms each season. It is hardy in USDA zones 6-9. In colder zones, it may need additional winter protection to ensure it survives the winter months.
